Mk4 LS400 Electric Exhaust valve

Recommended Posts

So I have been toying with the idea of allowing the silky smooth V8 to be heard more, but it almost feels criminal to be installing a louder exhaust or even remove the rear silencers when you see how much engineering Lexus has actually done to make this motor as quiet as it is. 

And then I stumbled upon these things on ebay:


So if this works as it says on the tin, this allows me to keep the superb waftability intact and switch to car meet exit mode at the press of a button. 

Obviously, I have many questions. First and foremost, is this too good to be true?

Has anyone else here had any experience with these things?

The paranoid side of me is saying that these things will never seal properly, the pipes will rot away in a year, but the actuator will break in six months that's if the wiring will make it beyond two weeks without shorting/frying. 

I guess I'm just a pessimist in dire need of some encouragement. HELP 🤔



Share this post

Link to post
Share on other sites

The picture showing the motor wires just wrapped around the terminals and not soldered immediately raised concerns about build quality! Motor looks cheap and nasty plus what happens once the butterfly valve gets choked with carbon.

Plus it’s not simply plug and play..looks like cutting the OEM system to install and some stainless steel welding on the flange supplied.

Also bear in mind you need 2 kits which at the price may attract HMRC interest.


  • Like 1

Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Club Hybrid Poll

  • 196 Hybrid Reliability

    1. 1. If you were to consider buying a Hybrid model over 5 years old, would you be worried about the reliability of the Hybrid system?

      • Not really as Hybrid systems are always reliable
      • Not if it had a Manufacturers Warranty on the Hybrid system
      • I would not buy a Hybrid model over 5 years old